CN210839371U

CN210839371U - Inverter for automatic access and grid disconnection of photovoltaic power generation system

Info

Publication number: CN210839371U
Application number: CN201922126623.4U
Authority: CN
Inventors: 骆涛; 罗明通
Original assignee: Shenzhen Naisite Energy Technology Co ltd
Current assignee: Shenzhen Naisite Energy Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-06-23
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses an automatic dc-to-ac converter of inserting and netting of photovoltaic power generation system, the on-line screen storage device comprises a base, the font recess has been seted up back to the upper end of base, the inside grafting of returning the font recess is fixed with the upper cover, the fixed welding of one side of upper cover has first fixed block, fixed welding has the second fixed block corresponding with first fixed block on the lateral wall of base, first fixed block and second fixed block pass through the bolt fastening, the upper end of upper cover is provided with the fin, and has seted up the louvre in one side of upper cover, be provided with the notch plate on the outer wall of upper cover, and the notch plate is located one side of louvre, the inside fixed mounting of notch plate has waterproof ventilative membrane filter screen. The utility model discloses when through the louvre heat dissipation, avoid moisture to a certain extent to get into the electric elements of the internal damage dc-to-ac converter of upper cover from the louvre.

Description

Inverter for automatic access and grid disconnection of photovoltaic power generation system

Technical Field

The utility model relates to a photovoltaic inverter technical field specifically is an automatic dc-to-ac converter of inserting and netting of photovoltaic power generation system.

Background

The photovoltaic inverter can convert the variable direct-current voltage generated by the photovoltaic solar panel into alternating-current inverter with commercial power frequency, and can feed back the alternating-current inverter to a commercial power transmission system or an off-grid power grid. The photovoltaic inverter is one of important system balances in a photovoltaic array system and can be used together with common alternating current power supply equipment. Solar inverters have a special function in conjunction with photovoltaic arrays.

The existing photovoltaic inverter can be provided with heat dissipation holes on a shell for effectively dissipating heat of internal electrical elements when in use, although the heat dissipation holes can better dissipate heat, the waterproof performance of the inverter is reduced, moisture can easily enter the shell through the heat dissipation holes to damage the electrical elements, and therefore the inverter for automatically accessing and de-networking a photovoltaic power generation system is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic dc-to-ac converter of inserting and netting of photovoltaic power generation system, this dc-to-ac converter are in through the radiating while of louvre, avoid moisture to a certain extent to get into the electric elements of the inside damage dc-to-ac converter of upper cover from the louvre to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an automatic dc-to-ac converter of inserting and netting of photovoltaic power generation system, includes the base, the upper end of base has been seted up back font recess, the inside grafting of returning the font recess is fixed with the upper cover, one side fixed weld of upper cover has first fixed block, fixed weld has the second fixed block corresponding with first fixed block on the lateral wall of base, first fixed block and second fixed block pass through the bolt fastening, the upper end of upper cover is provided with the fin, and one side of upper cover has seted up the louvre, be provided with the notch plate on the outer wall of upper cover, and the notch plate is located one side of louvre, the inside fixed mounting of notch plate has waterproof ventilative membrane filter screen.

Preferably, a first mounting hole is formed in the upper end of the first fixing block, a second mounting hole is formed in the upper end of the second fixing block, the first mounting hole and the second mounting hole are concentrically arranged, and one end of the bolt penetrates through the first mounting hole and the second mounting hole in sequence and is connected with a nut in a threaded mode.

Preferably, the radiating fins are arranged at the upper end of the upper cover at equal intervals and are not less than five groups, and one end of each radiating fin penetrates through the upper cover and is located inside the upper cover.

Preferably, the upper end of the base is provided with a fixture block for mounting an electric element.

Preferably, a sealing gasket is fixedly bonded on the inner wall of the square-shaped groove and is a rubber elastic sealing gasket.

Preferably, the side wall of the concave plate is provided with air holes, and the air holes are linear and are arranged at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a louvre has been seted up on one side of upper cover, and be provided with the notch plate on the outer wall of upper cover, and set up the notch plate and lie in one side of louvre, and fixedly install waterproof ventilative membrane filter screen in the inside of notch plate, make this dc-to-ac converter while radiating through the louvre, avoid moisture to enter the interior damage inverter's electric elements of upper cover from the louvre to a certain extent;

2. the utility model discloses a be provided with the fin in the upper end of upper cover to and be provided with the fin at the upper end of upper cover equidistant and be not less than five groups, and the one end of fin runs through the inside that the upper cover is located the upper cover, has further promoted the radiating efficiency of this dc-to-ac converter.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a schematic top view of the present invention.

In the figure: 1. a base; 2. a groove shaped like a Chinese character 'hui'; 3. an upper cover; 4. a first fixed block; 5. a second fixed block; 6. a heat sink; 7. heat dissipation holes; 8. a concave plate; 9. a waterproof breathable membrane filter screen; 10. air holes; 11. a first mounting hole; 12. a second mounting hole; 13. a bolt; 14. a nut; 15. a clamping block; 16. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an inverter for automatic access and grid release of a photovoltaic power generation system comprises a base 1, wherein the upper end of the base 1 is provided with a square-shaped groove 2, an upper cover 3 is fixedly inserted inside the square-shaped groove 2, a sealing gasket 16 is fixedly bonded on the inner wall of the square-shaped groove 2, the sealing gasket 16 is a rubber elastic sealing gasket, one side of the upper cover 3 is fixedly welded with a first fixing block 4, the side wall of the base 1 is fixedly welded with a second fixing block 5 corresponding to the first fixing block 4, the first fixing block 4 and the second fixing block 5 are fixed through a bolt 13, the upper end of the first fixing block 4 is provided with a first mounting hole 11, the upper end of the second fixing block 5 is provided with a second mounting hole 12, and the first mounting hole 11 and the second mounting hole 12 are concentrically arranged, one end of the bolt 13 penetrates through the first mounting hole 11 and the second mounting hole 12 in sequence and is connected with a nut 14 in a threaded manner, and a clamping block 15 for mounting an electric element is arranged at the upper end of the base 1;

the upper end of upper cover 3 is provided with fin 6, fin 6 is provided with in the upper end of upper cover 3 equidistant and is not less than five groups, and the one end of fin 6 runs through upper cover 3 and is located the inside of upper cover 3, and one side of upper cover 3 has seted up louvre 7, be provided with notch plate 8 on the outer wall of upper cover 3, and notch plate 8 is located one side of louvre 7, the inside fixed mounting of notch plate 8 has waterproof ventilated membrane filter screen 9, set up gas pocket 10 on the lateral wall of notch plate 8, gas pocket 10 is the linear equidistant establishment of seting up.

The working principle is as follows: when the inverter is used, the radiating holes 7 are formed in one side of the upper cover 3, the concave plate 8 is arranged on the outer wall of the upper cover 3, the concave plate 8 is arranged on one side of the radiating holes 7, and the waterproof breathable membrane filter screen 9 is fixedly arranged in the concave plate 8, so that when the inverter radiates heat through the radiating holes 7, moisture is prevented from entering the upper cover 3 from the radiating holes 7 to some extent to damage electric elements of the inverter; the radiating fins 6 are arranged at the upper end of the upper cover 3, the radiating fins 6 are arranged at equal intervals at the upper end of the upper cover 3 and are not lower than five groups, and one ends of the radiating fins 6 penetrate through the upper cover 3 and are positioned in the upper cover 3, so that the radiating efficiency of the inverter is further improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic dc-to-ac converter of switching in and breaking network of photovoltaic power generation system, includes base (1), its characterized in that: the utility model discloses a fan filter, including base (1), back font recess (2), the inside grafting of back font recess (2) is fixed with upper cover (3), one side fixed weld of upper cover (3) has first fixed block (4), fixed weld has second fixed block (5) corresponding with first fixed block (4) on the lateral wall of base (1), first fixed block (4) and second fixed block (5) are fixed through bolt (13), the upper end of upper cover (3) is provided with fin (6), and one side of upper cover (3) has seted up louvre (7), be provided with concave plate (8) on the outer wall of upper cover (3), and concave plate (8) are located one side of louvre (7), the inside fixed mounting of concave plate (8) has waterproof ventilative membrane filter screen (9).

2. The inverter for automatic access and grid disconnection of the photovoltaic power generation system according to claim 1, wherein: first mounting hole (11) have been seted up to the upper end of first fixed block (4), second mounting hole (12) have been seted up to the upper end of second fixed block (5), first mounting hole (11) are concentric setting with second mounting hole (12), and the one end of bolt (13) runs through first mounting hole (11) and second mounting hole (12) threaded connection in proper order has nut (14).

3. The inverter for automatic access and grid disconnection of the photovoltaic power generation system according to claim 1, wherein: the radiating fins (6) are arranged at the upper end of the upper cover (3) at equal intervals, and one end of each radiating fin (6) penetrates through the upper cover (3) and is located inside the upper cover (3).

4. The inverter for automatic access and grid disconnection of the photovoltaic power generation system according to claim 1, wherein: the upper end of the base (1) is provided with a fixture block (15) for mounting an electric element.

5. The inverter for automatic access and grid disconnection of the photovoltaic power generation system according to claim 1, wherein: the inner wall of the square-shaped groove (2) is fixedly bonded with a sealing gasket (16), and the sealing gasket (16) is a rubber elastic sealing gasket.

6. The inverter for automatic access and grid disconnection of the photovoltaic power generation system according to claim 1, wherein: the side wall of the concave plate (8) is provided with air holes (10), and the air holes (10) are linear and are arranged at equal intervals.